内容

特性
公共函数
重实现公共函数
信号
详细描述

QPrintDialog 类

QPrintDialog class provides a dialog for specifying the printer's configuration. 更多...

头：	#include <QPrintDialog>
qmake:	QT += printsupport
继承：	QAbstractPrintDialog

所有成员列表，包括继承成员

特性

options : PrintDialogOptions

2 特性继承自 QDialog
59 特性继承自 QWidget
1 特性继承自 QObject

公共函数

	QPrintDialog (QPrinter * printer , QWidget * parent = Q_NULLPTR)
	QPrintDialog (QWidget * parent = Q_NULLPTR)
	~QPrintDialog ()
void	open (QObject * receiver , const char * member )
PrintDialogOptions	options () const
QPrinter *	printer ()
void	setOption (PrintDialogOption option , bool on = true)
void	setOptions (PrintDialogOptions options )
bool	testOption (PrintDialogOption option ) const

重实现公共函数

virtual void	done (int result )
virtual int	exec ()
virtual void	setVisible (bool visible )

11 public functions inherited from QAbstractPrintDialog
8 公共函数继承自 QDialog
214 公共函数继承自 QWidget
32 公共函数继承自 QObject
14 公共函数继承自 QPaintDevice

信号

void	accepted (QPrinter * printer )

3 信号继承自 QDialog
3 信号继承自 QWidget
2 信号继承自 QObject

额外继承成员

5 公共槽继承自 QDialog
19 公共槽继承自 QWidget
1 公共槽继承自 QObject
5 静态公共成员继承自 QWidget
11 静态公共成员继承自 QObject
6 保护函数继承自 QDialog
35 保护函数继承自 QWidget
9 保护函数继承自 QObject
1 保护函数继承自 QPaintDevice
1 保护槽继承自 QWidget

详细描述

QPrintDialog class provides a dialog for specifying the printer's configuration.

The dialog allows users to change document-related settings, such as the paper size and orientation, type of print (color or grayscale), range of pages, and number of copies to print.

Controls are also provided to enable users to choose from the printers available, including any configured network printers.

Typically, QPrintDialog objects are constructed with a QPrinter object, and executed using the exec () 函数。

QPrintDialog printDialog(printer, parent);
if (printDialog.exec() == QDialog::Accepted) {
    // print ...
}

If the dialog is accepted by the user, the QPrinter object is correctly configured for printing.

The printer dialog (shown above in Plastique style) enables access to common printing properties. On X11 platforms that use the CUPS printing system, the settings for each available printer can be modified via the dialog's 特性 push button.

On Windows and macOS, the native print dialog is used, which means that some QWidget and QDialog properties set on the dialog won't be respected. The native print dialog on macOS does not support setting printer options, i.e. setOptions () 和 setOption () have no effect.

In Qt 4.4, it was possible to use the static functions to show a sheet on macOS. This is no longer supported in Qt 4.5. If you want this functionality, use QPrintDialog::open ().

另请参阅 QPageSetupDialog and QPrinter .

特性文档编制

options : PrintDialogOptions

This property holds the various options that affect the look and feel of the dialog

默认情况下，所有选项是被禁用的。

Options should be set before showing the dialog. Setting them while the dialog is visible is not guaranteed to have an immediate effect on the dialog (depending on the option and on the platform).

该特性在 Qt 4.5 引入。

访问函数：

PrintDialogOptions	options () const
void	setOptions (PrintDialogOptions options )

另请参阅 setOption () 和 testOption ().

成员函数文档编制

QPrintDialog:: QPrintDialog ( QPrinter * printer , QWidget * parent = Q_NULLPTR)

Constructs a new modal printer dialog for the given printer 采用给定 parent .

QPrintDialog:: QPrintDialog ( QWidget * parent = Q_NULLPTR)

Default constructs an instance of QPrintDialog.

QPrintDialog:: ~QPrintDialog ()

Destroys the print dialog.

`[signal]` void QPrintDialog:: accepted ( QPrinter * printer )

This signal is emitted when the user accepts the values set in the print dialog. The printer parameter includes the printer that the settings were applied to.

`[virtual]` void QPrintDialog:: done ( int result )

重实现自 QDialog::done ().

关闭对话框并将其结果代码设为 result . If this dialog is shown with exec (), done() causes the local event loop to finish, and exec () to return result .

注意： This function does not apply to the Native Print Dialog on the Mac macOS and Windows platforms, because the dialog is required to be modal and only the user can close it.

另请参阅 QDialog::done ().

`[virtual]` int QPrintDialog:: exec ()

重实现自 QDialog::exec ().

void QPrintDialog:: open ( QObject * receiver , const char * member )

这是重载函数。

打开对话框并连接其 accepted () 信号到槽，指定通过 receiver and member .

信号将断开槽连接，当对话框被关闭时。

该函数在 Qt 4.5 引入。

QPrinter *QPrintDialog:: printer ()

Returns the printer that this printer dialog operates on. This can be useful when using the QPrintDialog::open () 方法。

void QPrintDialog:: setOption ( PrintDialogOption option , bool on = true)

设置给定 option 为被启用若 on 为 true；否则，清零给定 option .

另请参阅 options and testOption ().

`[virtual]` void QPrintDialog:: setVisible ( bool visible )

重实现自 QWidget::setVisible ().

bool QPrintDialog:: testOption ( PrintDialogOption option ) const

返回 true 若给定 option 被启用；否则，返回 false。

另请参阅 options and setOption ().

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